Patents by Inventor Arthur H. Renkes

Arthur H. Renkes has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Bootstrap drive for a two-transistor forward converter
    Patent number: 4594649
    Abstract: A DC to DC voltage converter of the type having one switching transistor on the top side of the transformer and a second switching transistor on the bottom side. Opposite ends of the transformer are diode clamped to the bottom rail reference voltage. A bootstrap winding configuration taken from the top of the transformer drives the top switching transistor to eliminate the need for a tertiary winding. A pulse width modulated circuit drives the bottom transistor.
    Type: Grant
    Filed: March 1, 1985
    Date of Patent: June 10, 1986
    Assignee: NCR Corporation
    Inventors: Paul M. Rhoads, Arthur H. Renkes